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wimmersc
New User
Jul 16, 2008, 11:41 AM
Post #1 of 5
(1946 views)
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won't shift out of park.
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i have a 2007 mercury grand marquis that stopped going into gear. I drove it to work and it was fine, when i tried to leave it will shift out of park. Please help with any suggestions
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jul 16, 2008, 3:50 PM
Post #2 of 5
(1940 views)
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Re: won't shift out of park.
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?? Tad new for me to have checked one out yet. Most vehicles use the brake light switch as the trigger to allow shifting out of park. Check that brake lights work at all. If not check the fuse. Could be an adustment problem at the switch if intermittent and fuse checks good.
Isn't this vehicle still under warranty?
T
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zmasterflex
User
Aug 19, 2008, 5:11 PM
Post #3 of 5
(1882 views)
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Re: won't shift out of park.
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I'm not one to argue with any mechanic, but doesn't the nuetral safety switch prevent the car from going into gear unless the foot is pressing the brake? There is a mechanical button (in my car) by the brake pedal, and then a relay, fuse, and then an electrical hookup to the trans. I'm currently having a similiar problem myself and this is what I'm staring at.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Aug 19, 2008, 5:42 PM
Post #4 of 5
(1878 views)
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Re: won't shift out of park.
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A classic neutral safety switch is so that the starter won't engage while in anything but Park or Neutral in automatics and standards use a switch at the clutch pedal to allow the starter motor to engage.
This "stuck in park" thing is detecting that the brake pedal is applied before it will move out of park in automatics.
Usually they are sensing the brake lights but could be a separate way but still thru the brake pedal and then a electrical switch releases the mechanism that has locked it in park. That could fail also but more are from the brake light switch in my experience. Some cars have an override for this and some don't.
Standard shifts do assorted tricks. Some didn't let you remove your key unless you were in reverse if I recall.
The park lock thing is basically so that a child is unlikely to hit a brake pedal AND shift a car and have it roll away,
T
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jwelch
User
Aug 20, 2008, 8:12 PM
Post #5 of 5
(1866 views)
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Re: won't shift out of park.
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most newer ford use a shift interlock solenoid that is mounted in the steering column it will be powered from the brake switch, when you step on the brake it will energize the solenoid so that the vehicle can be taken out of park
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